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32 .\" @(#)finger.1 8.3 (Berkeley) 5/5/94
33 .\" $FreeBSD: src/usr.bin/finger/finger.1,v 1.9.2.12 2003/02/25 20:31:18 trhodes Exp $
40 .Nd user information lookup program
45 .Op Ar user@host ...\&
49 utility displays information about the system users.
52 .Bl -tag -width indent
56 to use IPv4 addresses only.
60 to use IPv6 addresses only.
62 Display the user's login name, real name, terminal name and write
63 status (as a ``*'' before the terminal name if write permission is
64 denied), idle time, login time, and either office location and office
65 phone number, or the remote host.
68 is given, the office location and office phone number is printed
72 is given, the remote host is printed instead.
74 Idle time is in minutes if it is a single integer, hours and minutes
75 if a ``:'' is present, or days if a ``d'' is present.
78 the login time indicates the time of last login.
79 Login time is displayed as the day name if less than 6 days, else month, day;
80 hours and minutes, unless more than six months ago, in which case the year
81 is displayed rather than the hours and minutes.
83 Unknown devices as well as nonexistent idle and login times are
84 displayed as single asterisks.
86 When used in conjunction with the
88 option, the name of the remote host is displayed instead of the office
89 location and office phone.
91 When used in conjunction with the
93 option, the office location and office phone information is displayed
94 instead of the name of the remote host.
96 This option restricts the gecos output to only the users' real
97 name. It also has the side-effect of restricting the output
98 of the remote host when used in conjunction with the
102 Produce a multi-line format displaying all of the information
105 option as well as the user's home directory, home phone number, login
106 shell, mail status, and the contents of the files
112 from the user's home directory.
114 If idle time is at least a minute and less than a day, it is
115 presented in the form ``hh:mm''.
116 Idle times greater than a day are presented as ``d day[s]hh:mm''.
118 Phone numbers specified as eleven digits are printed as ``+N-NNN-NNN-NNNN''.
119 Numbers specified as ten or seven digits are printed as the appropriate
120 subset of that string.
121 Numbers specified as five digits are printed as ``xN-NNNN''.
122 Numbers specified as four digits are printed as ``xNNNN''.
124 If write permission is denied to the device, the phrase ``(messages off)''
125 is appended to the line containing the device name.
126 One entry per user is displayed with the
128 option; if a user is logged on multiple times, terminal information
129 is repeated once per login.
131 Mail status is shown as ``No Mail.'' if there is no mail at all, ``Mail
132 last read DDD MMM ## HH:MM YYYY (TZ)'' if the person has looked at their
133 mailbox since new mail arriving, or ``New mail received ...'', ``Unread
134 since ...'' if they have new mail.
141 from displaying the contents of the
153 is usually a login name; however, matching will also be done on the
154 users' real names, unless the
157 All name matching performed by
161 Disable the piggybacking of data on the initial connection request.
162 This option is needed to finger hosts with a broken TCP implementation.
165 If no options are specified,
169 style output if operands are provided, otherwise to the
172 Note that some fields may be missing, in either format, if information
173 is not available for them.
175 If no arguments are specified,
177 will print an entry for each user currently logged into the system.
181 utility may be used to look up users on a remote machine.
182 The format is to specify a
188 where the default output
189 format for the former is the
191 style, and the default output format for the latter is the
196 option is the only option that may be passed to a remote machine.
200 exists in the user's home directory,
202 behaves as if the user in question does not exist.
206 configuration file can be used to specify aliases.
211 aliases will work for both local and network queries.
215 utility utilizes the following environment variable, if it exists:
218 This variable may be set with favored options to
222 .Bl -tag -width /var/log/lastlog -compact
223 .It Pa /etc/finger.conf
224 alias definition data base
225 .It Pa /var/log/lastlog
236 .%T The Finger User Information Protocol
246 The current FINGER protocol RFC requires that the client keep the connection
247 fully open until the server closes. This prevents the use of the optimal
248 three-packet T/TCP exchange. (Servers which depend on this requirement are
249 bogus but have nonetheless been observed in the Internet at large.)